Flat lenses thinner than a wavelength promise to replace conventional refractive lenses in miniaturized optical systems. However, Fresnel zone plate flat lens designs require dense annuli, which significantly challenges nanofabrication resolution. Herein, we propose a new implementation of detour phase graphene flat lens with flexible annular number and width. Several graphene metalenses demonstrated that with a flexible selection of the line density and width, the metalenses can achieve the same focal length without significant distortions. This will significantly weaken the requirement of the nanofabrication system which is important for the development of large-scale flat lenses in industry applications.

中文翻译：

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高容错相位氧化石墨烯平面透镜

比波长更薄的平面透镜有望取代微型光学系统中的传统折射透镜。然而，菲涅耳波带板平面透镜设计需要密集的环，这对纳米制造分辨率提出了重大挑战。在此，我们提出了一种具有灵活环数和宽度的绕行相位石墨烯平面透镜的新实现。几个石墨烯超透镜表明，通过灵活选择线密度和宽度，超透镜可以实现相同的焦距而不会产生明显的失真。这将显着削弱纳米制造系统的需求，这对于工业应用中的大型平面透镜的开发很重要。